Pith Number

pith:3UFWLI5L

pith:2017:3UFWLI5LWANNSTVYXODGRFT66J

not attested not anchored not stored refs pending

Asymmetric Expansion of the Youngest Galactic Supernova Remnant G1.9+0.3

D. A. Green, K. J. Borkowski, P. Gwynne, R. Petre, R. Willett, S. P. Reynolds, U. Hwang

arxiv:1702.06555 v1 · 2017-02-21 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3UFWLI5LWANNSTVYXODGRFT66J}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:49:09.023598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd0b65a3abb01ad94eb8bb8668967ef2462fa226cc299ea29e0ae5266c1ef895

Aliases

arxiv: 1702.06555 · arxiv_version: 1702.06555v1 · doi: 10.48550/arxiv.1702.06555 · pith_short_12: 3UFWLI5LWANN · pith_short_16: 3UFWLI5LWANNSTVY · pith_short_8: 3UFWLI5L

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3UFWLI5LWANNSTVYXODGRFT66J \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: dd0b65a3abb01ad94eb8bb8668967ef2462fa226cc299ea29e0ae5266c1ef895

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2737fca58a7cd170b5fc085e229beeea336b19e8bf15ff5c14e62463ccaa403",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-02-21T19:19:32Z",
    "title_canon_sha256": "4c9882252233febf83fda9a50e36d6ffb6f3aa3f3c799e1be64f444dcec14734"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06555",
    "kind": "arxiv",
    "version": 1
  }
}